Evolution of the Computer

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for staorage rather than a decimal system.

:: 1850s : George Boole developed Boolean logic which would later be used in the design of computer circuitry.

:: 1890: Dr. Herman Hollerith introduced the first electromechanical, punched-card data-processing machine which was used to compile information for the 1890 U.S. census. Hollerith's tabulator became so successful that he started his own business to market it. His company would eventually become International Business Machines (IBM).

:: 1906 : The vacuum tube is invented by American physicist Lee De Forest.

:: 1939 : Dr. John V. Atanasoff and his assistant Clifford Berry build the first electronic digital computer. Their machine, the Atanasoff-Berry-Computer (ABC) provided the foundation for the advances in electronic digital computers.

:: 1941 : Konrad Zuse (recently deceased in January of 1996), from Germany, introduced the first programmable computer designed to solve complex engineering equations. This machine, ...

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